Home / 31,931.51-44,065.46-18,510.54

Finding the Fourth Proportional to 31,931.51, 44,065.46 and 18,510.54

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Solution

The fourth proportional to 31,931.51, 44,065.46 and 18,510.54 is: 25,544.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,931.51 : 44,065.46 = 18,510.54 : x
  2. Step 2: Convert to fraction form
    31,931.51/44,065.46 = 18,510.54/x
  3. Step 3: Cross multiply
    31,931.51x = 44,065.46 × 18,510.54
  4. Step 4: Simplify right side
    31,931.51x = 815,675,459.95
  5. Step 5: Solve for x
    x = 815,675,459.95/31,931.51
  6. Step 6: Final answer
    x = 25,544.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.